Allow GPU resources to not be counted against the cache budget.

src/gpu/GrGpuResource.cpp

Index: src/gpu/GrGpuResource.cpp
diff --git a/src/gpu/GrGpuResource.cpp b/src/gpu/GrGpuResource.cpp
index ea3756b8dd07733fe5e711331d853fb5cecf28b6..8dbbd83ef58ad5a561d74bf0b52594262b0f5464 100644
--- a/src/gpu/GrGpuResource.cpp
+++ b/src/gpu/GrGpuResource.cpp
@@ -19,15 +19,15 @@ static inline GrResourceCache2* get_resource_cache2(GrGpu* gpu) {
 }
 
 GrGpuResource::GrGpuResource(GrGpu* gpu, bool isWrapped)
-    : fGpu(gpu)
+    : fScratchKey(GrResourceKey::NullScratchKey())
+    , fGpu(gpu)
     , fGpuMemorySize(kInvalidGpuMemorySize)
-    , fUniqueID(CreateUniqueID())
-    , fScratchKey(GrResourceKey::NullScratchKey())
-    , fContentKeySet(false) {
+    , fUniqueID(CreateUniqueID()) {
     if (isWrapped) {
-        fFlags = kWrapped_FlagBit;
+        fFlags = kWrapped_Flag;
     } else {
-        fFlags = 0;
+        // By default all non-wrapped resources are budgeted.
+        fFlags = kBudgeted_Flag;
     }
 }
 
@@ -92,16 +92,16 @@ bool GrGpuResource::setContentKey(const GrResourceKey& contentKey) {
     if (this->isWrapped()) {
         return false;
     }
-    
-    if (fContentKeySet || this->wasDestroyed()) {
+
+    if ((fFlags & kContentKeySet_Flag) || this->wasDestroyed()) {
         return false;
     }
 
     fContentKey = contentKey;
-    fContentKeySet = true;
+    fFlags |= kContentKeySet_Flag;
 
     if (!get_resource_cache2(fGpu)->resourceAccess().didSetContentKey(this)) {
-        fContentKeySet = false;
+         fFlags &= ~kContentKeySet_Flag;
         return false;
     }
     return true;
@@ -136,3 +136,21 @@ uint32_t GrGpuResource::CreateUniqueID() {
     } while (id == SK_InvalidUniqueID);
     return id;
 }
+
+void GrGpuResource::setBudgeted(bool countsAgainstBudget) {
+    // Wrapped resources never count against the budget, nothing to do. No point in changing the
+    // budgeting of destroyed resources.
+    if (this->isWrapped() || this->wasDestroyed()) {
+        return;
+    }
+
+    uint32_t oldFlags = fFlags;
+    if (countsAgainstBudget) {
+        fFlags |= kBudgeted_Flag;
+    } else {
+        fFlags &= ~kBudgeted_Flag;
+    }
+    if (fFlags != oldFlags) {
+        get_resource_cache2(fGpu)->resourceAccess().didChangeBudgetStatus(this);
+    }
+}